Nylon 66 salt production wastewater biochemical pretreatment device

Abstract

The utility model discloses a pretreatment device before biochemical treatment of nylon 66 salt production wastewater, which comprises a tank body, a stirring mechanism arranged at the central position of the tank body, and a driving motor fixed at the top of the tank body and used for driving the stirring mechanism to rotate, the stirring mechanism comprises a stirring shaft, and the stirring shaft is fixed at the output end of the driving motor and is rotatably connected with the tank body. A frustum is fixed at the bottom of the stirring shaft, and a plurality of annularly distributed stirring blades are fixed on the outer side of the frustum; when a regulating medicament needs to be injected, the medicament is injected into the shell through the guide pipe and is introduced into the liquid guide cavity through the notch, the cylindrical plug compresses the spring under the action of liquid pressure and slides downwards under the guide of the guide block, and then the rotating shaft rotates under the pressing of the spiral pressing sheet by the wheel of the pressing wheel; and the blade plates on the rotating shaft are used for mixing the liquid in the frustum, so that crystal deposition in the liquid is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field related to wastewater pretreatment, and specifically relates to a biochemical pretreatment device for nylon 66 salt production wastewater. Background Art

[0002] In the traditional nylon 66 salt production wastewater treatment method, the wastewater produced by each nylon 66 salt production and synthesis device is mixed and then enters the equalization and adjustment tank for biochemical pretreatment of the wastewater. After the pH is adjusted through the pretreatment, it enters the biological selector and is further treated through other processes.

[0003] After searching, the announcement number CN217051684U discloses a homogenizing regulating tank stirring mechanism, including: a transmission disc, an extension rod and a stirring seat; a plurality of stirring blades are arranged at the bottom of the stirring seat, a buffer chamber is arranged inside the stirring seat, a liquid inlet pipe is provided on the extension rod, and a plurality of liquid outlet pipes are provided on the outer wall of the stirring seat. The transmission disc of the utility model is connected to a power source for driving stirring, and the extension rod has a certain length so that the stirring seat at the bottom extends into the bottom of the regulating tank. The homogenizing regulating tank stirring mechanism drives the transmission disc, the extension rod and the stirring seat to rotate and stir through an external power source, and the stirring blades rotate synchronously to stir the liquid inside the regulating tank. The extension rod is provided with a liquid inlet pipe, which facilitates the filling of the agent for homogenizing the pool water into the buffer chamber, so that the agent flows out through the liquid outlet pipe, starts to react from the pool water in the center of the stirring water flow, and spreads evenly to the outside with the stirring water flow, thereby improving the regulating stirring efficiency.

[0004] However, the above-mentioned homogenizing regulating tank stirring mechanism technology has the following problems: after the above-mentioned homogenizing regulating tank stirring mechanism is filled with regulating agent, the agent content remaining in the buffer chamber in the stirring seat is relatively large. This part of the agent is easy to crystallize and precipitate in the buffer chamber after staying for a long time, thereby affecting the mixing with the wastewater and reducing the regulating ability of the wastewater. Utility Model Content

[0005] The utility model aims to provide a biochemical pretreatment device for nylon 66 salt production wastewater to solve the problem in the above-mentioned background technology that the reagent is prone to crystallization and precipitation in the buffer chamber when it stays for a long time.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a nylon 66 salt production wastewater biochemical pretreatment device, comprising a tank body, a stirring mechanism arranged at the center of the tank body, and a driving motor fixed to the top of the tank body for driving the stirring mechanism to rotate, the stirring mechanism comprising a stirring shaft, the stirring shaft is fixed to the output end of the driving motor and is rotatably connected to the tank body, a frustum is fixed to the bottom of the stirring shaft, a plurality of annularly distributed stirring blades are fixed to the outside of the frustum, a flow conversion component for adding and regulating agents is arranged on the top of the stirring shaft, a mixing component is arranged on the inner side of the frustum, and a plug is arranged on the inner side of the bottom of the stirring shaft for driving the mixing component to mix the liquid in the frustum under the action of pressure when adding agents, and the plug is elastically connected to the stirring shaft through a spring.

[0007] Preferably, the inverter assembly comprises a shell, and one side of the shell is connected to a conduit.

[0008] Preferably, a liquid conducting cavity is provided inside the stirring shaft, and a notch is provided on the top of the stirring shaft for connecting the inner cavity of the shell with the liquid conducting cavity.

[0009] Preferably, the mixed flow component comprises a rotating shaft, which is rotatably connected to the frustum, a plurality of annularly distributed blades are fixed to the outer side of the bottom of the rotating shaft, and a spiral pressing sheet is fixed to the outer side of the top of the rotating shaft.

[0010] Preferably, the plug comprises a cylindrical plug, a guide block slidably connected to the stirring shaft is fixed to the outer side of the bottom of the cylindrical plug, a cylinder sleeved outside the rotating shaft is fixed to the lower end of the cylindrical plug, and pressure wheels are arranged on both sides of the interior of the cylinder.

[0011] Preferably, the pressing wheel comprises a shaft fixed to the cylinder and a wheel in contact with the spiral pressing sheet, and the wheel is rotatably connected to the shaft.

[0012] Preferably, the top of the cylindrical plug extends into the liquid conducting cavity, and a sealing ring tightly fitting with the liquid conducting cavity is fixed to the outer side of the top of the cylindrical plug.

[0013] Compared with the prior art, the utility model provides a biochemical pretreatment device for nylon 66 salt production wastewater, which has the following beneficial effects:

[0014] 1. When the regulating agent needs to be added, the catheter injects the agent into the shell and passes it into the liquid guide cavity through the notch. The cylindrical plug compresses the spring under the action of the liquid pressure and slides downward under the guidance of the guide block. Then, the rotating shaft rotates under the pressure of the spiral pressing sheet by the wheel of the pressing wheel, and then the blade on the rotating shaft mixes the liquid in the cone to prevent crystal deposition in the liquid.

[0015] 2. In the utility model, after the medicine is filled, the cylindrical plug is plugged into the liquid guide cavity under the elastic force of the spring, thereby preventing backflow and playing the role of blocking the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 A half-section schematic diagram of a biochemical pretreatment device for nylon 66 salt production wastewater proposed in the utility model;

[0018] Figure 2 This is a schematic diagram of the stirring mechanism structure proposed by the utility model;

[0019] Figure 3 This is a half-section structural schematic diagram of the stirring mechanism proposed in the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the mixed flow component proposed by the utility model;

[0021] Figure 5 This is a schematic diagram of the plug structure proposed by the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the plug provided by the utility model from another perspective;

[0023] In the figure: 1. tank body; 2. stirring mechanism; 21. stirring shaft; 211. liquid guiding cavity; 212. notch; 22. cone; 23. stirring blade; 24. flow conversion component; 241. shell; 242. conduit; 25. mixing flow component; 251. rotating shaft; 252. blade; 253. spiral pressing piece; 26. plug; 261. cylindrical plug; 262. guide block; 263. cylinder; 264. pressure wheel; 265. sealing ring; 27. spring; 3. driving motor. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 , Figure 2 and Figure 3The utility model provides a technical solution: a nylon 66 salt production wastewater biochemical pretreatment device, comprising a tank body 1, a stirring mechanism 2 arranged at the center of the tank body 1, and a driving motor 3 fixed to the top of the tank body 1 for driving the stirring mechanism 2 to rotate, the stirring mechanism 2 comprising a stirring shaft 21, the stirring shaft 21 is fixed to the output end of the driving motor 3 and is rotatably connected to the tank body 1, a frustum 22 is fixed at the bottom of the stirring shaft 21, a plurality of annularly distributed stirring blades 23 are fixed to the outside of the frustum 22, a flow conversion component 24 for adding and regulating agents is arranged at the top of the stirring shaft 21, a mixing component 25 is arranged on the inner side of the frustum 22, a plug 26 is arranged on the inner side of the bottom of the stirring shaft 21 for driving the mixing component 25 to mix the liquid in the frustum 22 under the action of pressure when adding agents, and the plug 26 is elastically connected to the stirring shaft 21 through a spring 27.

[0026] See also Figure 2 and Figure 3 The flow conversion component 24 includes a shell 241, one side of the shell 241 is connected with a conduit 242, the interior of the stirring shaft 21 is provided with a liquid guide cavity 211, and the top of the stirring shaft 21 is provided with a notch 212 that connects the inner cavity of the shell 241 with the liquid guide cavity 211. When it is necessary to add regulating agents, the conduit 242 injects the agents into the shell 241 and passes into the liquid guide cavity 211 through the notch 212, thereby pushing the plug 26, so that the plug 26 overcomes the elastic force of the spring 27 and allows the liquid to enter the cone 22 and be discharged from the guide hole on the cone 22.

[0027] See also Figure 3 and Figure 4 The mixed flow component 25 includes a rotating shaft 251, which is rotatably connected to the cone 22. A plurality of annularly distributed blades 252 are fixed to the outer side of the bottom of the rotating shaft 251, and a spiral pressing sheet 253 is fixed to the outer side of the top of the rotating shaft 251.

[0028] See also Figure 3 , Figure 5 and Figure 6 The plug 26 includes a cylindrical plug 261, a guide block 262 slidably connected to the stirring shaft 21 is fixed to the outer side of the bottom of the cylindrical plug 261, a cylinder 263 sleeved on the outside of the rotating shaft 251 is fixed to the lower end of the cylindrical plug 261, and pressure wheels 264 are arranged on both sides of the inside of the cylinder 263. The pressure wheel 264 includes a shaft fixed to the cylinder 263 and a wheel that conflicts with the spiral pressing piece 253. The wheel is rotatably connected to the shaft. The cylindrical plug 261 compresses the spring 27 under the action of liquid pressure and slides downward under the guidance of the guide block 262, and then the rotating shaft 251 is rotated by the pressure of the wheel of the pressure wheel 264 on the spiral pressing piece 253, and then the blade 252 on the rotating shaft 251 mixes the liquid in the cone 22 to prevent crystal deposition in the liquid.

[0029] It should be noted that the top of the cylindrical plug 261 extends into the liquid guiding cavity 211, and a sealing ring 265 is fixed to the outer side of the top of the cylindrical plug 261, which fits tightly with the liquid guiding cavity 211, so that the cylindrical plug 261 can compress the spring 27 under the action of liquid pressure and slide downward under the guidance of the guide block 262.

[0030] The working principle and use process of the utility model are as follows: in the initial state, the cylindrical plug 261 is plugged into the liquid guiding cavity 211 under the elastic force of the spring 27. When it is necessary to add a regulating agent, the catheter 242 injects the agent into the shell 241 and passes it into the liquid guiding cavity 211 through the slot 212. The cylindrical plug 261 compresses the spring 27 under the action of the liquid pressure and slides downward under the guidance of the guide block 262. Then, the rotating shaft 251 rotates under the pressure of the spiral pressing piece 253 by the wheel of the pressing wheel 264, and then the blade 252 on the rotating shaft 251 mixes the liquid in the cone 22 to prevent crystal deposition in the liquid.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A biochemical pretreatment device for nylon 66 salt production wastewater, comprising a tank body (1), a stirring mechanism (2) arranged at the center of the tank body (1), and a driving motor (3) fixed to the top of the tank body (1) for driving the stirring mechanism (2) to rotate, characterized in that: The stirring mechanism (2) comprises a stirring shaft (21), the stirring shaft (21) being fixed to the output end of the driving motor (3) and being rotatably connected to the tank body (1), a cone (22) being fixed at the bottom of the stirring shaft (21), a plurality of annularly distributed stirring blades (23) being fixed at the outer side of the cone (22), a flow conversion component (24) for filling and regulating the agent being arranged at the top of the stirring shaft (21), a flow mixing component (25) being arranged at the inner side of the cone (22), a plug (26) being arranged at the inner side of the bottom of the stirring shaft (21) for driving the flow mixing component (25) to mix the liquid in the cone (22) under the action of pressure when filling the agent, and the plug (26) being elastically connected to the stirring shaft (21) via a spring (27).

2. A biochemical pretreatment device for nylon 66 salt production wastewater according to claim 1, characterized in that: The inverter assembly (24) comprises a housing (241), and one side of the housing (241) is connected to a conduit (242).

3. A biochemical pretreatment device for nylon 66 salt production wastewater according to claim 2, characterized in that: A liquid conducting cavity (211) is provided inside the stirring shaft (21), and a notch (212) is provided on the top of the stirring shaft (21) for communicating the inner cavity of the outer shell (241) with the liquid conducting cavity (211).

4. The biochemical pretreatment device for nylon 66 salt production wastewater according to claim 1, characterized in that: The mixed flow component (25) comprises a rotating shaft (251), the rotating shaft (251) being rotatably connected to the cone (22), a plurality of annularly distributed blades (252) being fixed to the outer side of the bottom of the rotating shaft (251), and a spiral pressing sheet (253) being fixed to the outer side of the top of the rotating shaft (251).

5. A biochemical pretreatment device for nylon 66 salt production wastewater according to claim 4, characterized in that: The plug (26) comprises a cylindrical plug (261), a guide block (262) slidably connected to the stirring shaft (21) is fixed to the outer side of the bottom of the cylindrical plug (261), a cylinder (263) sleeved on the outside of the rotating shaft (251) is fixed to the lower end of the cylindrical plug (261), and pressure wheels (264) are arranged on both sides of the interior of the cylinder (263).

6. A biochemical pretreatment device for nylon 66 salt production wastewater according to claim 5, characterized in that: The pressing wheel (264) comprises a shaft fixed to the cylinder (263) and a wheel that contacts the spiral pressing sheet (253), and the wheel is rotatably connected to the shaft.

7. The biochemical pretreatment device for nylon 66 salt production wastewater according to claim 5, characterized in that: The top of the cylindrical plug (261) extends into the liquid guiding cavity (211), and a sealing ring (265) tightly fitting with the liquid guiding cavity (211) is fixed on the outer side of the top of the cylindrical plug (261).

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